Hello. I imported a live track into band lab that only has voice and acoustic guitars. I want to add tracks of drum machines, bass, another guitar, etc… The difficulty is to get the drum machine that has fixed beat per minute (bpm) copied in segments of regions and retrofit each segment throughout various parts of the song to cover from beginning to end. Some parts of the imported song performance slightly speeds up and/or slows down. Would I be able to use multiple segmented regions, each having its own bpm, to match the varying bpms throughout the imported song?